Uniden (ebc100) Accessory External Battery Charger Kit for SDS100 Digital Handheld Scanner, Kit Includes One Extended Battery Pa

The EBC100 External Battery Charger for the SDS100 allows you to conveniently charge a spare battery for your scanner so that you’ll always have the power you need to keep scanning. Charge Profile:Charges at 1000 mA until voltage reaches 4.1V, then charges at 4.1V until charge rate reaches 100 mA. Approximately 6.5 hours to full charge from a fully depleted extended battery.